20 



Invertebrata. 



and coalescing when they touch each other. To these 

 the name pseudopodia (false feet) has been given. 



These little creatures live on any minute organic 

 particles with which they come in contact, and their 

 mode of feeding is simple ; when the ray-like pseudo- 

 podia touch a particle of which they seem to approve 

 as a prospective meal they converge around it, and 



FIG. 8. 



Rotalia. Veneta, a Rhizopod, showing the pseudopodia. 



touching each other coalesce, and draw the particle 

 within the body proper, in which it is digested. As 

 these creatures are homogeneous or nearly so, any 

 one spot is as suitable for the protrusion of pseudo- 

 podia or for the taking in of food as another, but 

 usually the processes are most numerous opposite the 

 holes in the shell. 



